the force of objects being attracted by magnets. the coils or solenoids act as magnets and the projectile (which must be able to attract to magnets, often iron or steel is used) is attracted to the coils. but when the projectile reaches the coil the coil must be turned off so the projectile keeps going instead of stopping at the coil.
The design of a coilgun minimizes recoil by using electromagnetic forces to propel the projectile instead of explosive gases. This reduces the backward force on the gun, improving accuracy and stability during firing.
E-BAY!!!
When a force makes an object move, work is done.
Centrifugal force.
The force that is at work is gravity. If you are thinking of bouyancy, it is not a force.
The transfer of energy that occurs when a force makes an object move is called work. Work is a quantity of energy given in the unit of Joules. The mathematical description of work is the product of the force and the distance for which it was applied.
The transfer of energy that occurs when a force makes an object move in the direction of the force is called work. Work is calculated as the product of the force applied to an object and the distance over which the force is applied in the direction of motion.
it makes work easier by changing an input force into a larger output force.
friction
along the lines of a railgun or coilgun
A simple machine makes work easier by reducing the force which it takes to move something. Also it makes life eaiser, but taking shortcuts does not always help.
if the force applied on a body makes a body move that is there is a displacement of the point of application of force in the direction of force then work is said to be done by the body